| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Monolithic Power Systems, Inc. (MPWR) has 11 insiders with recent SEC Form 4 filings, including 0 buys and 62 sells. MPWR is classified in the Semiconductors & Semiconductor Equipment industry within the Information Technology sector.
| Role | Insider | Shares | Value | 30d |
|---|---|---|---|---|
| CEO | 956.4K | $1.26B | - | |
| VP | 201.6K | $264.81M | - | |
| VP | 163.5K | $214.68M | - | |
| CFO | 65.4K | $85.91M | - | |
| Dir | 28.0K | $36.73M | - |
Buys and sells only
| Date | Insider | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| May 26, 2026 | Dean Robert W II | Interim CFO | Sell | 22 | $1,649.56 | $36,290.32 | -0.4% | - | - | |
| May 26, 2026 | Zhou Jeff50 | Director | Sell | 486 | $1,680.00 | $816,480.00 | -11.3% | - | - | |
| May 6, 2026 | Elmiger Eugen J | Director | Sell | 12,000 | $1,584.96 | $19,019,481.56 | -10.2% | - | - | |
| May 4, 2026 | Sciammas Maurice45 | EVP, Ww Sales &Marketing | Sell | 30 | $1,588.73 | $47,661.90 | -2.4% | - | - | |
| Apr 8, 2026 | Tseng Saria49 | EVP &General Counsel | Sell | 8,963 | $1,305.22 | $11,698,654.18 | -0.5% | - | - | |
| Apr 6, 2026 | Tseng Saria49 | EVP &General Counsel | Sell | 7,636 | $1,167.95 | $8,918,434.08 | -0.6% | - | - | |
| Apr 1, 2026 | Tseng Saria49 | EVP &General Counsel | Sell | 1,400 | $1,133.52 | $1,586,924.40 | -0.2% | - | - | |
| Mar 20, 2026 | Sciammas Maurice45 | EVP, Ww Sales &Marketing | Sell | 30 | $1,095.07 | $32,852.10 | -2.3% | +46.3% | - | |
| Feb 10, 2026 | Hsing Michael49 | CEO | Sell | 34,000 | $1,142.28 | $38,837,435.26 | -0.4% | +40.2% | - | |
| Feb 2, 2026 | Blegen Theodore51 | EVP And CFO | Sell | 3,000 | $1,129.76 | $3,389,266.28 | -0.3% | +35.0% | - |